# Derivon vs ひたすら積分

The clearest difference is in-app purchases: ひたすら積分 at none against Derivon's 5. ひたすら積分 also leads on device support (3 vs 1) and iOS requirement (13.0 vs 26.0). On price and ads there is nothing between them.

Both are free to download. Derivon sells 5 in-app purchases, starting at $1.99 per month. ひたすら積分 asks for nothing beyond the download.

## The numbers

| Metric | Derivon | ひたすら積分 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.0 (1 ratings)](https://appshunter.io/ios/app/derivon-calculus-practice/id6761150220/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | Every 5 days | — |
| Monetization | Free with in-app purchases | — |
| Size | 251 MB | 21 MB |
| Requires iOS | 26.0 | **13.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [ABT合同会社](https://appshunter.io/developer/6813846553) | [nihei keita](https://appshunter.io/developer/1866466968) |

## What reviewers say

### Derivon

[App page](https://appshunter.io/ios/app/derivon-calculus-practice/id6761150220)

Master calculus concepts like derivatives and integrals through daily, intuitive practice. Earn rewards, collect planets, and build streaks as you progress through challenges. Designed for quick, effective learning sessions.

**Highlights:** Daily calculus problem practice, Earn Star Sand rewards, Collect planets in Gallery, Build and maintain daily streaks, Rank-Up Challenges, Shooting mode for breaks

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Derivon Super (Monthly) | $1.99 | per month |
| Derivon Super (Yearly) | $14.99 | per year |
| 5 Star Fragments | $0.99 | one-time |
| 12 Star Fragments | $1.99 | one-time |
| 32 Star Fragments | $3.99 | one-time |


### ひたすら積分

[App page](https://appshunter.io/ios/app/id6774960981)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Derivon free?

Derivon is free to download, with in-app purchases available.

### Is ひたすら積分 free?

ひたすら積分 is free to download, with no in-app purchases.

### Do Derivon or ひたすら積分 have ads?

Both Derivon and ひたすら積分 show ads.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*